If you are committed long term, and have goals of running down into the 10's...
Cage, tq box reinforcing, axles, welded tubes, spool, driveshaft loop,Baseline adjustable upper/
lower control arms(relocated uppers), strange adjustable shocks/struts.
Dialed in with weigh reduction you've got a consistent/reliable mid/high 12 second car.
But the foundation is there for low 10's.
Add power later, and, if committed to 4.56's, you are going to be getting up there in rpm, and, rpm costs $$$.
If this is a whim...
tq box reinforcing, axles, welded tubes, spool, driveshaft loop, Jegs
control arms, Lakewood shocks and a 175 n2o kit, sell the 4.56's and get 4.10's...
When the track it just right and everything aligns, this will run down into the mid 11's, but, you'll be at the limit of everything, and, some nights you'll run low 12's and be pedaling it out to 330'. It'll not be the most consistent setup, but it'll be reliable (assuming n2o tune is spot on)
Figure out if you like the sport, and go from there.
Let us know when you're ready to spend the next $3k.